I agree with the last two posts. Druids will not tank in groups, and often you won't tank when you're hunting mobs that are high dark blue cons to you, especially after level 30 or so. It's just not smart to try to do so.
At the same time, there's a lot to be said for maintaining your melee skills as high as possible. They will cap out early, and after that mobs will beat you down very, very quickly. It's important to learn early how to take down creatures without letting them touch you so you know how to solo in the end game.
Personally, I take a lot of melee damage while soloing. Generally I have to med up mana after two or more kills unless on a mount, so I might as well let my hp drop a little while fighting since I'll be medding regardless. Besides, why not make the best use of one of your best tools. Druids get damage shields that stack together, and if a mob is beating on you relatively quickly, then they'll be taking all the damage of your ds. It's like an extra dot. You get excellent regen spells, too, which will compensate for the damage you take a bit.
This being said, it makes it that much more important to snare what your fighting and have sow up constantly because you never know when you'll get an add or that frost giant might quad attack on you a little more than your low hp/ac can handle.
My strategy when soloing mobs that are relatively easy to handle is simple. I'm lvl 50 now and have progressed rather rapidly by soloing (often meleeing during that time). I am a college student and don't have much time to play (my played time on the character right now is about 7 days, and that includes bazaar afk time), so this is my advice.
-you should try to save up enough pp to have a mount to aid in mana regen while casting, or make sure to use one of the mounts from the latest expansions on your druid. You can take melee damage and regen mana like you are sitting on a mount as long as you aren't attacking. This is important because your ds will do much more damage than you will attacking with any weapon I've seen that's druid usable and your low lvl cap on melee abilities.
-over lvl 46 try to keep kei or something close to it up when you hunt because it gives you so much more mana to play with. More mana means you can do so much more, and at the higher levels soloing is slow and almost silly without it. Kei is more important for a meleeing druid than any hp buff you will get.
-now that you have decent mana regen (without even having high end equipment, but if you do it's even better), what I typically do is snare the mob, lay on one or two dots, depending on how tough it will be. I make sure both my damage shields are up as well as your ac/hp buff that regens and chloro. Then just sit back and cast DD's as necessary. Don't even hit the attack button, just let them wail into the thorns. You'll regen mana quickly enough while you don't attack to heal yourself during the fight and continue laying on whatever other spells are necessary. If you must, root the mob and back off enough to rest a while.
Well, I just felt like I needed to put a bit of my strategy out there for what I do when quad kiting gets boring or seems impossible, or you just feel like mixing it up a bit with meleeing. Hope this strategy will help those in the future.
Selvo, Druid, Erollisi Marr
PS- This is what part of the alphabet would look like if Q and R weren't in it.